Improvememt in road-scrapers



manner as shown in the drawings.

UNITED STATES EDWARD A. FIELD, OF SIDNEY, MAINE.

IMPROVEMEMT IN ROAD-SCRAPERS.

Specification forming part of Letters Patent No. 48,920, dated July 25, 1865.

To all-'whom 'it may concern.'

Be it known that I, EDWARD A. FIELD, of Sidney, of the county of Kennebec and State of Maine, have invented an Improved Road- Scraper; and I do hereby declare the same to be fully described in the following specification and represented in the accompanying drawings, of which- Figure l is a top view, Fig. 2 a side elevalion, Fig. 3 a longitudinal section, and Fig. 4 a transverse section, of it, the latter figure having its plane of section taken through the drivers foot-board, and being made to exhibit the scraping-bar, to be hereinafter described.

The main part of the scraper is like an ordinary ox-sled, it being shown at A in the drawings, a a. being the runners, and b b the connecting-bars, and c the draittongue, projecting from a rocker-shaft, d, arranged to turn in both runners. The animals for drawing the scraper over a roadway are to be harnessed or yoked to the tongue preparatory to the scraper being put in use. A drivers seat, e, is raised on the runners, and they have a foot-board, f, extending from one to the other of them, and arranged with respect to the drivers seat in Furthermore, there is underneath the foot-board and extending vertically therefrom and from one runner to the other a scraping board or bar, g, which has a plate of iron or steel, h, affixed to its front side and extendedupward from its lower edge.

With the scraper so made I combine a pair of levers, i i, one of them being applied to the outer side of each of the runners by a fulcrum pin or screw, 7c, going through the lever and into the runner near its rear end. To the shorter arm of each of the levers I connect a wheel, l, which revolves freely on a pin, m, supported by two starts, n a, projecting from the lever, the whole being as shown in the drawings. The longer arm of each of the levers extends within reach of the driver or a person while sitting on the seat e.

The wheels Z l are useful auxiliaries to prevent friction and its effects, whichwould result were we to dispense with them and make use ot" the levers alone, or without such wheels and their connections with the said levers.

While the scraper is in the act of beingdrawn over the surface of a road for the purpose of ef facingtheruts and rendering the road even and smoother, the bar g will gather or pile up on its front side more or less of the earth.

The object of the levers i t' is to enable a per- It will readily be seen that were itnot for the wheels the friction ofthe lever, when such lever may be borne upon the ground, would operate to materially retard or interfere with the tractile force. The wheels therefore, when employed with the levers, enable the draft animals to operate to better advantage than they could without them.

What I cla-inl as my invention is The combination and arrangement of the levers it', or the said levers and the wheels l l, with the road-scraper composed of the sled and thesorapiug-bar, or their equivalents, substantially as described.

ED VARD A. FIELD.

Witnesses:

R. H. EDDY, y F. P. HALE, Jr. 

